1200020021342 has 8 divisors (see below), whose sum is σ = 1814203497216. Its totient is φ = 595285522272.

The previous prime is 1200020021281. The next prime is 1200020021353. The reversal of 1200020021342 is 2431200200021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1200020021342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2362243883 + ... + 2362244390.

It is an arithmetic number, because the mean of its divisors is an integer number (226775437152).

Almost surely, 2^{1200020021342} is an apocalyptic number.

1200020021342 is a deficient number, since it is larger than the sum of its proper divisors (614183475874).

1200020021342 is a wasteful number, since it uses less digits than its factorization.

1200020021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4724488402.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1200020021342 its reverse (2431200200021), we get a palindrome (3631220221363).

The spelling of 1200020021342 in words is "one trillion, two hundred billion, twenty million, twenty-one thousand, three hundred forty-two".